Is it hard to win an emotional distress case?

It can be difficult to sue for emotional distress because your harm may not be physically visible. You will need to provide evidence that you have been harmed and prove that the defendant's actions caused you harm. Are there any specific criteria? I mean that anyone can claim emotional harm for literally anything, so what makes this a viable case? An attorney with experience with emotional issues is more than just a guide; they are strategists who know how serious accident cases play out in court.